Kokovic Vladimir, Krsljak Elena, Andric Miroslav, Brkovic Bozidar, Milicic Biljana, Jurisic Milan, Rahman Muhammed Mustahsen, Hämmerle Christoph H F
*Associate Professor, College of Dental Science, Medical Health and Science University, Ras Al Khaimah, United Arab Emirates. †Professor, Department of Oral Physiology, Faculty of Dentistry, University of Belgrade, Belgrade, Serbia. ‡Associate Professor, Clinic of Oral Surgery, Faculty of Dentistry, University of Belgrade, Belgrade, Serbia. §Associate Professor, Department of Medical Statistics and Informatics, Faculty of Dentistry, University of Belgrade, Belgrade, Serbia. ‖Professor, Clinic of Oral Surgery, Faculty of Dentistry, University of Belgrade, Belgrade, Serbia. ¶Professor, College of Dental Science, Medical Health and Science University, Ras Al Khaimah, United Arab Emirates. #Professor, Department for Fixed and Removable Prosthodontics, University Zurich, Zurich, Switzerland.
Implant Dent. 2014 Apr;23(2):200-5. doi: 10.1097/ID.0000000000000057.
Bone vascularity is an important factor in process of osseointegration. The aim of this study was to find whether or not blood perfusion of the bone around the prepared implant sites influences subsequent implant stability.
Patients with bilaterally edentulous mandible were treated with dental implants. Bone vascularity in implant sites was previously noted using Laser Doppler Flowmetry (LDF). Implant stability quotient (ISQ) was measured during follow-up period of 26th week. Statistical distribution and correlation between LDF and ISQ values were presented. Other variables (type of implant loading; sex and distance from the apical part of implant sites to the roof of the mandibular canal) were collected and correlated with LDF values.
The mean recorded LDF value was 53.05 perfusion unit. Eighteen implants were immediately loaded, and the other 18 were early loaded. In the group of early loaded implants, a statistically significant correlation between mean value of LDF and changing value of resonance frequency analysis (P < 0.05) was noted at 5th, 6th, 12th, and 26th weeks. Using Pearson coefficient of correlation, there was no statistically significant relationship between other variables and LDF values.
LDF values of implant sites might determine future implant stability.
骨血管形成是骨结合过程中的一个重要因素。本研究旨在探讨预备种植位点周围骨组织的血流灌注是否会影响后续种植体的稳定性。
对双侧下颌无牙患者进行牙种植治疗。术前使用激光多普勒血流仪（LDF）记录种植位点的骨血管形成情况。在第26周的随访期内测量种植体稳定性商数（ISQ）。给出LDF值与ISQ值之间的统计分布及相关性。收集其他变量（种植体加载类型；性别以及种植位点根尖部至下颌管顶的距离）并与LDF值进行相关性分析。
记录的LDF平均值为53.05灌注单位。18枚种植体即刻加载，另外18枚早期加载。在早期加载种植体组中，在第5、6、12和26周时，LDF平均值与共振频率分析变化值之间存在统计学显著相关性（P < 0.05）。使用Pearson相关系数分析，其他变量与LDF值之间无统计学显著关系。
种植位点的LDF值可能决定未来种植体的稳定性。
